file struturce changed.

src/lib/utils/wqueue.h

@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) Roland Jax 2012-2014 <ebusd@liwest.at>
+ *
+ * This file is part of ebusd.
+ *
+ * ebusd is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ebusd is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with ebusd. If not, see http://www.gnu.org/licenses/.
+ */
+
+#ifndef LIBCORE_WQUEUE_H_
+#define LIBCORE_WQUEUE_H_
+
+#include <list>
+#include <pthread.h>
+
+template <typename T> class WQueue
+{
+
+public:
+	WQueue()
+	{
+		pthread_mutex_init(&m_mutex, NULL);
+		pthread_cond_init(&m_cond, NULL);
+	}
+
+	~WQueue()
+	{
+		pthread_mutex_destroy(&m_mutex);
+		pthread_cond_destroy(&m_cond);
+	}
+
+	void add(T item)
+	{
+		pthread_mutex_lock(&m_mutex);
+
+		m_queue.push_back(item);
+
+		pthread_cond_signal(&m_cond);
+		pthread_mutex_unlock(&m_mutex);
+	}
+
+	T remove()
+	{
+		pthread_mutex_lock(&m_mutex);
+
+		while (m_queue.size() == 0)
+			pthread_cond_wait(&m_cond, &m_mutex);
+
+		T item = m_queue.front();
+		m_queue.pop_front();
+
+		pthread_mutex_unlock(&m_mutex);
+
+		return item;
+	}
+
+	int size()
+	{
+		pthread_mutex_lock(&m_mutex);
+
+		int size = m_queue.size();
+
+		pthread_mutex_unlock(&m_mutex);
+
+		return size;
+	}
+
+private:
+	std::list<T> m_queue;
+	pthread_mutex_t m_mutex;
+	pthread_cond_t m_cond;
+
+};
+
+#endif // LIBCORE_WQUEUE_H_